JavaScript == vs ===: A Hidden Bug Risk

The most frequently asked question in the JavaScript interview is: "How prototypal inheritance works in JavaScript"? This is the question that most developers struggle to explain. So I have written an article explaining it in detail and in easy-to-understand language. 𝗖𝗵𝗲𝗰𝗸 𝗼𝘂𝘁 𝘁𝗵𝗲 𝗮𝗿𝘁𝗶𝗰𝗹𝗲 𝗹𝗶𝗻𝗸 𝗶𝗻 𝘁𝗵𝗲 𝗰𝗼𝗺𝗺𝗲𝗻𝘁 𝘁𝗼 𝗯𝗲𝘁𝘁𝗲𝗿 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱 𝗽𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲 𝗮𝗻𝗱 𝗽𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗮𝗹 𝗶𝗻𝗵𝗲𝗿𝗶𝘁𝗮𝗻𝗰𝗲. 𝘍𝘰𝘳 𝘮𝘰𝘳𝘦 𝘴𝘶𝘤𝘩 𝘶𝘴𝘦𝘧𝘶𝘭 𝘤𝘰𝘯𝘵𝘦𝘯𝘵, 𝘥𝘰𝘯'𝘵 𝘧𝘰𝘳𝘨𝘦𝘵 𝘵𝘰 𝘧𝘰𝘭𝘭𝘰𝘸 𝘮𝘦. #javascript #reactjs #nextjs #webdevelopment

When traditional <script> tags are unavailable, an alternative approach involves embedding JavaScript code within a javascript: pseudo-protocol handler to trigger function execution using JS FUCK https://lnkd.in/dBYiZh9G #js #xss #javascript #jsFuck

JavaScript date handling often seems simple at the beginner level, but real-world projects quickly reveal its complexity. Today I worked on a feature where I had to take a start date and an end date, generate all the dates in between, and mark them as booked. It was a small task, but it highlighted how important careful logic and edge-case thinking are in production-level applications. Building features like this is how theory turns into real understanding. #JavaScript #WebDevelopment #ProblemSolving #DeveloperJourney #react #javascript #learnbydoing

Most JavaScript beginners misunderstand delete 👇 delete works only on object properties, ❌ not on variables ❌ not on function parameters And if a property is non-configurable, it fails silently. #JavaScript #WebDevelopment #Frontend #CodingTips #DeveloperJourney

One key takeaway I’ve learned when working with strings in JavaScript is that string methods return new values, and if the result isn’t reassigned, JavaScript simply discards it. This often causes a lot of confusion when you don’t yet understand why nothing seems to change. #JavaScript #WebDevelopment #TechJourney #Growth

JavaScript Spread Operator Many JS beginners miss out this tricky operator Don't be one among them. In many JS code snippets you would have seen'... 'three dots. We all know its spread operator but not its application in code. Everything explained in the below carousel Don't miss it. Spread operator can reduce your lines of code for complex operations. So learn it now with help of Scribbler. Learn the basics of JS from JavaScript Mastery and W3Schools.com Follow Scribbler.Live to explore more in JavaScript Share this with a friend who might find it useful #JustScribble #Javascript #React js #Mernstack #Webdevelopement #Frontend

Working with dates in JavaScript can be a challenge 📆. Moment JS simplifies this process, but have you ever needed to get all dates between two specific dates? This common requirement can be tricky to implement. Moment JS provides an efficient way to achieve this. By utilizing its features, you can easily retrieve a list of dates between two given dates. Read more: https://lnkd.in/gPwkXtjM #MomentJS #JavaScript #WebDevelopment #DateManipulation

🚀 Understanding Callback Hell in JavaScript (Beginner-Friendly Tutorial) Asynchronous code is powerful—but it can quickly become confusing if not handled correctly. In this video, I explain Callback Hell in JavaScript using a real-life example, making it easy for beginners to understand why it happens and how to fix it. 🔍 What you’ll learn: ✔ What is Callback Hell in JavaScript ✔ Why deeply nested callbacks are a problem ✔ How callback hell affects readability & maintainability ✔ JavaScript async fundamentals ✔ How Promises and async/await solve this issue ✔ Basic understanding of the JavaScript Event Loop 🎯 This video is ideal for: JavaScript beginners Frontend developers Interview preparation Anyone working with async JavaScript 📺 Watch here: 👉 https://lnkd.in/gy4D5bg2 If you’re learning JavaScript or preparing for interviews, this is a must-watch. Feel free to share your thoughts or questions in the comments. #JavaScript #CallbackHell #AsyncJavaScript #Promises #AsyncAwait #EventLoop #WebDevelopment #FrontendDevelopment #JavaScriptTutorial #LearnJavaScript #InterviewPreparation #CodingForBeginners Ranjna Devi Anil Kumar Harish Kumar

🧠 Shortcuts don’t break JavaScript. Misunderstanding fundamentals does. I tried using throw new Error() inside a ternary operator, expecting it to behave like an if/else. ❌ Didn’t work. 🧠 The reason (important): • throw is a statement, not an expression • Ternary operators only accept expressions Small syntax rule. Big “aha” moment. 💡 What this reinforces: ✔️ Fundamentals matter more than clever tricks ✔️ JavaScript rewards clarity over shortcuts ✔️ Tiny misunderstandings can cause long debugging sessions These are the kinds of details that separate code that runs from code that’s reliable. 👀 Your turn: What’s the smallest JavaScript mistake that once wasted the most time for you? 💬 Drop it in the comments let’s learn from each other. 📩 And if you’re building or reviewing a Node.js/JavaScript codebase and want it clean, predictable, and production-ready feel free to DM me. #JavaScript #NodeJS #WebDevelopment #SoftwareEngineering #CodingLife #DeveloperLearning #CleanCode #Debugging #ProgrammingTips #TechCommunity #BuildInPublic

😵 Callback Hell in JavaScript What starts as a simple callback can quickly turn into nested chaos. Avoid callback hell by using Promises and async/await for readable, maintainable code ✅ #JavaScript #CallbackHell #AsyncJavaScript #Promises #AsyncAwait #CleanCode #JSConcepts #WebDevelopment #FrontendDeveloper #CodingLife